/***** BEGIN LICENSE BLOCK *****
 * Version: CPL 1.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Common Public
 * License Version 1.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.eclipse.org/legal/cpl-v10.html
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * Copyright (C) 2007 Charles O Nutter <headius@headius.com>
 * 
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.jruby.runtime;

import org.jruby.RubyModule;
import org.jruby.runtime.builtin.IRubyObject;

/**
 * A Block implemented using a Java-based BlockCallback implementation
 * rather than with an ICallable. For lightweight block logic within
 * Java code.
 */
public class CompiledSharedScopeBlock extends CompiledBlockLight {
    public static Block newCompiledSharedScopeClosure(ThreadContext context, IRubyObject self, Arity arity, DynamicScope dynamicScope,
            CompiledBlockCallback callback, boolean hasMultipleArgsHead, int argumentType) {
        Binding binding = new Binding(self,
             context.getCurrentFrame().duplicate(),
                Visibility.PUBLIC,
                context.getRubyClass(),
                dynamicScope);
        BlockBody body = new CompiledSharedScopeBlock(arity, dynamicScope, callback, hasMultipleArgsHead, argumentType);
        
        return new Block(body, binding);
    }

    private CompiledSharedScopeBlock(Arity arity, DynamicScope containingScope, CompiledBlockCallback callback, boolean hasMultipleArgsHead, int argumentType) {
        super(arity, containingScope.getStaticScope(), callback, hasMultipleArgsHead, argumentType);
    }
    
    @Override
    protected Frame pre(ThreadContext context, RubyModule klass, Binding binding) {
        return context.preForBlock(binding, klass);
    }
    
    @Override
    public Block cloneBlock(Binding binding) {
        return new Block(this, binding);
    }
}
